Fire-extinguishing apparatus



Dec. 27, 1927.

G. W. POLK ET AL FIRE EXTINGUISHING APPARATUS Filed March 29, 1923gvwenkora Patented Dec. 27, 1 927.

UNITED STATES PATENTOFFICE.

GEORGE W. IQLK AND GEORGE W. BURKE, JR, 0F DAYTON, OHIO.

FIRE-EXTINGUISHING APPARATUS.

Application filed March 29, 1923. Serial No. 628,478;

This invention relates to fire extinguishing apparatus, the object inview being to provide a portablefire extinguisher of large capacity,especially designed for use in airplane and aircraft hangars, wherecompact ness and size are important features, in view of the fact thatit is necessary to carry or transport the fire extinguishers under thewings of airplanes.

A further object of the inventionis topro-- vide a fire extinguishercontaining fire extinguishing fluid or liquid, 2. pressure means forexpelling the same from a suitable container, and a single valve forthrowing the device into full operation. The fire extinguisher isillustrated as of the wall type, as fire extinguishers for the purposeabove referred to are usually hung at various places around the walls ofan airplane hangar where they will be convenient at all times.

lVith the above and other objects in view, the invention consists in thenovel construction, combination and arrangement herein described, shownand claimec.

In the accompanying drawings.

Figure 1 is a side elevation of the fire extinguisher.

Figure 2 is a vertical diametrical section through the same, showingcertain parts in elevation.

The improved fire extinguisher embodies a container 5, preferably ofhollow, cylindrical formation and having fitted to one end thereof aremovable cap 6 to give access to the interior of the container. A bailshaped handle 7 is fitted to the container 5, enabling the same to becarried readily orhung upon a wall or other support.

Within the lower end of the container there is a bottle-like holder 8containing suitable fire extinguishing fluid or liquid such as carbontetrachloride, said holder being provided at its lower end with a fillercap 9 tightly screwed or otherwise fitted thereon and also communicatingat its lower end with a discharge pipe 10 which extends longitudinallywithin the container5 to a point near the upper end thereof, where it isextended laterally through the wall of the container leaving a nippleend 11 to which a flexible hose 12 is applied, the hose 12 having at itsfree end a suitable nozzle 13.

In the upper portion of the container 1 there is another bottle-likeholder 14 containing any suitable gas under compression such as carbonicacid gas. A pipe connection 15 extends from the holder 14 to the holder8 for carrying the pressure from one to the other and a single manuallyoperable valve 16 controls the pipe connection'15. The valve 16 isprovided on the outer end thereof, exterior of the container 1 with ahand wheel 17 or any other suitable operating device.

In operating the fire extinguisher, it is only necessary to open thevalve 16 by means of the handle or operating device 17. Immediatelythereupon the pressure in the holder 14 is liberated and passes to theinterior of theholder 8, thereby forcing the fire extinguishing fluid orliquid therefrom through the pipe 10 and the hose 12, and outwardthrough the distributing nozzle 13. Uusually the fire extinguisher istransported from place to place upon a wheeled truck and thereforecompactness and size are important features as it'is necessary to carryplanes. Upon arriving at the point where the fire occurs, it is onlynecessary to direct the hose 13 toward the fire and set the fire thefire extinguisher under the wings of airoperable exteriorly of saidcontainer to control the flow of gas through said connecting means andinto said fluid chamber to expel the fluid from said chamber throughsaid discharge pipe.

In testimony whereof we aifix our signatures.

GEORGE W. POLK. GEORGE W. BURKE, JR.

